CVE-2017-0910

Published: Nov 27, 2017Modified: May 13, 2026

8.8

Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 2.8 / Impact: 5.9

Source: NVD

Description

In Zulip Server before 1.7.1, on a server with multiple realms, a vulnerability in the invitation system lets an authorized user of one realm on the server create a user account on any other realm.

Affected (1)

Products: Zulip: Zulip Server

Zulip

1 product

Zulip Server

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Zulip Zulip Server	Before 1.7.1

Related CWEs

CWE-287

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

CWE-863

Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (4)

http://blog.zulip.org/2017/11/23/zulip-1-7-1-released/

Source: support@hackerone.com

Vendor Advisory

https://github.com/zulip/zulip/commit/960d736e55cbb9386a68e4ee45f80581fd2a4e32

Source: support@hackerone.com

PatchThird Party Advisory

http://blog.zulip.org/2017/11/23/zulip-1-7-1-released/

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://github.com/zulip/zulip/commit/960d736e55cbb9386a68e4ee45f80581fd2a4e32

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

Timeline

No history available yet.